I am creating a window using QT with C++. The title of the window is a file name. I want to show(like tool tip) file path whenever I hover the mouse over the window title bar.
How do I do this using QT?
For adding ToolTip to your widgets or buttons you have 2 ways :
if you create your UI from the Designer section :
RightClick in your button or widget and choose Change ToolTip
Then write what you want as ToolTip and also you can change its style by adding cone as HTML
like this :
Create your widget and then use setToolTip function
pushButton = new QPushButton(this);
pushButton->setToolTip(QCoreApplication::translate("MainWindow", "<span style=" font-size:12pt;">This is ToolTip", nullptr));
Related
I have a QWidget which should take place over the central widget of my application which is a VideoWidget for playing video. The problem is that I can't set background of the QWidget to be transparent.
Use a StyleSheet (you can do that in code with setStylesheet or in the ui file : RMB on the widget you want "Change stylesheet" or even in the properties tab)
for instance
"background-color: rgba(255, 255, 0, 50);"
gives a yellow transparant look:(example of a button used on top of another button)
With stylesheets you can control the look of a complete program or just the specific widgets you want. More info in the style sheet reference
You could make the full Widget invisible:
QWidget::setHidden(true);
I have a toolbar in my Gtkmm application. I am able to add ToolButton that have either text with Gtk::manage(new Gtk::ToolButton("Add")); or an icon, using : button->set_icon_name("document-new").
I have not found any method that ToolButton has to display both the text and the icon. The method available seems to only be available for the Button class, which the class ToolButton doesn't inherit from.
Using button->set_label("Add") afterward also doesn't work. The only thing that is displayed is an icon.
How can I display both text and icon in my ToolButton ?
Helo,
when i rightclick to the window background I get this:
Why are the Layout options are not clickable?
I want to extend a widget to the window.
When I press a button, I bring up a dialog where user select things and press 'Ok' at the end. I want a splitter in this dialog. Left pane will show tree and right will show something else. How do I do that right?
From Qt example itself:
QSplitter *splitter = new QSplitter(parent);
QListView *listview = new QListView;
QTreeView *treeview = new QTreeView;
QTextEdit *textedit = new QTextEdit;
splitter->addWidget(listview);
splitter->addWidget(treeview);
splitter->addWidget(textedit);
So in this example, splitter is created without any dialog resource. If I have to create this way, that would mean I have to create all my controls in the code as well rather than Qt Creator.
What is the right way to do this when I need other controls on the screen?
You can simply create splitter containing items in Qt Designer :
First place your widgets on your dialog or widget in designer (They should not be in a layout)
Select the widgets that you want to be in a splitter (By holding CTL and clicking on them)
Right click on a selected widget and from Layout menu select Lay Out Horizontally in Splitter or Lay Out Vertically in Splitter.
Now apply a grid layout to the dialog and everything should be OK. You would see something like this in Object Inspector View :
Okay, I know this is ancient, but here's the complete answer.
First, within some sort of widget container, plop your pieces in. For the window I just did, I have a Widget as my window. I put two widgets inside that labeled something like topContainer and bottomContainer. I then put all the widgets they each need into them, and gave them their own layouts.
Then do NOT select the main container. Select the two widgets you want to split. You're in effect putting a splitter on them, not on the main container. So I went to the widget list window and selected both together, then right-click for the dialog window, scroll down to the Layout option, and "Lay Out Vertically in a Splitter" is NOT greyed out. Select it.
You still need a layout on the main container. A splitter is not a layout. So at that point, I just put a vertical layout on the main container.
To repeat: you are NOT setting a layout on the container holding the pieces you're trying to split. You are selecting the two widgets to split and adding a QSplitter around them. That's the trick to get it to work.
You can still create your controls in a .ui file using Qt Designer (integrated in Qt Creator). Within Qt Designer, add a QWidget object to your dialog. Then, from QDialog derived class you'll write, directly in your constructor, create your QSplitter using the QWidget object as a parent.
This way, you can create all but the splitter object from Qt Designer.
I think it's also possible to create the QSplitter (as you can create a QButton, QCheckBox...) item directly from Qt Designer.
I want to add icons in QMainWindow and when i will click that window it should perform some action like popup some window. So what should i use for the icon menu?
You could use the QToolButton class to accomplish this task.
It is possible to set it to only contain an image/icon without text.
l buttons are normally created when new QAction instances are created with QToolBar::addAction() or existing actions are added to a toolbar with QToolBar::addAction(). It is also possible to construct tool buttons in the same way as any other widget, and arrange them alongside other widgets in layouts.
A tool button's icon is set as QIcon. This makes it possible to specify different pixmaps for the disabled and active state. The disabled pixmap is used when the button's functionality is not available. The active pixmap is displayed when the button is auto-raised because the mouse pointer is hovering over it.
The button's look and dimension is adjustable with setToolButtonStyle() and setIconSize(). When used inside a QToolBar in a QMainWindow, the button automatically adjusts to QMainWindow's settings (see QMainWindow::setToolButtonStyle() and QMainWindow::setIconSize()). Instead of an icon, a tool button can also display an arrow symbol, specified with arrowType.
So, you would use these methods:
QAction * QToolBar::addAction(const QIcon & icon, const QString & text)
Creates a new action with the given icon and text. This action is added to the end of the toolbar.
and
toolButtonStyle : Qt::ToolButtonStyle
This property holds whether the tool button displays an icon only, text only, or text beside/below the icon.
The default is Qt::ToolButtonIconOnly.
To have the style of toolbuttons follow the system settings (as available in GNOME and KDE desktop environments), set this property to Qt::ToolButtonFollowStyle.
QToolButton automatically connects this slot to the relevant signal in the QMainWindow in which is resides.
As you can see, the default is icon only.